no 4wd

[josh1095]

got a question for all of ya. i have a 99 so its a torque on demand system.
was working fine but now it wont switch to 4hi or 4lo. i hear the relay clicking in the dash like normal but it goes like 3 times and then stops. no dash lights come on and i confirmed im not in 4wd. the tcase motor is not engaging. fuse 104 is good. the torque on demand system still works too. if i spin the rear tires the front grable immediately. im thinking a tcase motor. whats ur thoughts?

 

[K5rnt]

Sounds like the shift motor to me also.

 

[josh1095]

its gotta be that. typical motor failure. i just tried it before going to the store. just turned it back and forth a couple times making sure i hear the relay in the dash. about the third time i heard it actually move and the light lit up. same for 4lo. motor is going bad, mustve had moisture in it from the rain the other day. well, ive got a spare. hell, i have an entire tcase with it!lol

 

[BassinFever]

I have had one of those motors apart and they can be cleaned and put back into service! A little emery paper on the armature is all it takes unless the brush's are worn out and that is not likely!

 

[jdan]

I've had an issue with the vacuum solenoid on the passenger side fire wall not engaging the front axle. Not sure how a 00 is set up but mine is a 97.